<template>
  <div class="home-new" ref="target">
    <HomePanel title="新鲜好物" sub-title="新鲜出炉 品质靠谱">
      <template #right><XtxMore path="/" /></template>
      <!-- 面板内容 -->
      <ul class="goods-list">
        <li v-for="item in goods" :key="item.id">
          <RouterLink to="/">
          <!-- 图片懒加载优化 -->
            <!-- <img :src="item.picture" alt=""> -->
            <img v-imgLazy="item.picture" alt="">

            <p class="name ellipsis">{{item.name}}</p>
            <p class="price">&yen;{{item.price}}</p>
          </RouterLink>
        </li>
      </ul>
    </HomePanel>
  </div>
</template>
<script>
import { ref } from 'vue'
import HomePanel from './HomePanel.vue'
import { findNew } from '@/api/home'
// import { useIntersectionObserver } from '@vueuse/core'
import { useLazyData } from '@/compositions'

export default {
  name: 'HomeNew',
  components: { HomePanel },
  setup () {
    // 数据懒加载
    // 先获取dom元素
    // const target = ref(null)
    // const { stop } = useIntersectionObserver(
    //   target,
    //   // 监听DOM元素是否进入可视区
    //   ([{ isIntersecting }], observerElement) => {
    //     // 进入区域后做什么
    //     if (isIntersecting) {
    //       stop()
    //       findNew().then(res => {
    //         console.log(res)
    //         goods.value = res.result
    //       })
    //     }
    //   },
    //   // 进去可视区的大小（百分比）
    //   { threshold: 0 }
    // )
    const goods = ref([])
    const fn = () => {
      findNew().then(res => {
        console.log(res)
        goods.value = res.result
      })
    }
    const target = useLazyData(fn)

    return { goods, target }
  }
}
</script>
<style scoped lang="less">
.goods-list {
  display: flex;
  justify-content: space-between;
  height: 406px;
  li {
    width: 306px;
    height: 406px;
    background: #f0f9f4;
    .hoverShadow();
    img {
      width: 306px;
      height: 306px;
    }
    p {
      font-size: 22px;
      padding: 12px 30px 0 30px;
      text-align: center;
    }
    .price {
      color: @priceColor;
    }
  }
}
</style>
